Fix Next Steps links to point where readers actually go next

- Merchant: Deploy Operator (full config), Protocol Overview, Examples
- Payer: Arbiter Quickstart (what happens to your refund), Protocol Overview, Examples
- Arbiter: Deploy Operator (how you're configured), Smart Contracts (access control), Examples

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: vraspar

sdk/arbiter-quickstart.mdx

@@ -161,13 +161,13 @@ if (fees > 0n) {
 ## Next Steps
 
 <CardGroup cols={3}>
-  <Card title="Merchant Quickstart" icon="store" href="/sdk/merchant-quickstart">
-    Deploy an operator, authorize payments, release funds.
+  <Card title="Deploy Operator" icon="rocket" href="/sdk/deploy-operator">
+    How your address gets configured as arbiter on an operator.
   </Card>
-  <Card title="Payer Quickstart" icon="user" href="/sdk/payer-quickstart">
-    Request refunds, freeze payments, submit evidence.
+  <Card title="Smart Contracts" icon="file-contract" href="/contracts/overview">
+    Conditions and recorders that control on-chain access.
   </Card>
   <Card title="Examples" icon="code" href="/sdk/examples">
-    Runnable examples for every SDK operation.
+    Full dispute resolution scenario end-to-end.
   </Card>
 </CardGroup>

sdk/merchant-quickstart.mdx

@@ -182,13 +182,13 @@ if (hasRefund) {
 ## Next Steps
 
 <CardGroup cols={3}>
-  <Card title="Payer Quickstart" icon="user" href="/sdk/payer-quickstart">
-    Request refunds, freeze payments, submit evidence.
+  <Card title="Deploy Operator" icon="rocket" href="/sdk/deploy-operator">
+    Full deployment config, slot details, and preview addresses.
   </Card>
-  <Card title="Arbiter Quickstart" icon="gavel" href="/sdk/arbiter-quickstart">
-    Review disputes, approve or deny refunds.
+  <Card title="Protocol Overview" icon="globe" href="/x402-integration/overview">
+    How escrow, capture, and void work under the hood.
   </Card>
   <Card title="Examples" icon="code" href="/sdk/examples">
-    Runnable examples for every SDK operation.
+    Full scenario scripts to copy from.
   </Card>
 </CardGroup>

sdk/payer-quickstart.mdx

@@ -134,13 +134,13 @@ console.log('Refund cancelled:', cancelTx)
 ## Next Steps
 
 <CardGroup cols={3}>
-  <Card title="Merchant Quickstart" icon="store" href="/sdk/merchant-quickstart">
-    Deploy an operator, authorize payments, release funds.
-  </Card>
   <Card title="Arbiter Quickstart" icon="gavel" href="/sdk/arbiter-quickstart">
-    Review disputes, approve or deny refunds.
+    What happens after you submit a refund request.
+  </Card>
+  <Card title="Protocol Overview" icon="globe" href="/x402-integration/overview">
+    Escrow timing, capture, and the payment lifecycle.
   </Card>
   <Card title="Examples" icon="code" href="/sdk/examples">
-    Runnable examples for every SDK operation.
+    Full dispute resolution scenario end-to-end.
   </Card>
 </CardGroup>